package com.study_programming_in_java;



public class StringMath {

	public String add(String a, String b) {
		throw new RuntimeException();
	}

	/**
	 * Method counts unique strings in array.
	 * "a", "b", "b", "a" => 1 
	 * @param strings
	 * @return
	 */
	public int countUnique(String[] strings) {
		throw new RuntimeException();
	}
}
